Rotatably and pivotally adjustable wheel hoist and support



arch 27, 1951 c. E. BRANICK 295469849 RUTATABLY AND PIVOTALLY ADJUSTABLEWHEEL HOIST AND SUPPORT Filed May 27, 1946 2 Sheets-Sheet 1 March 27,1951 c. E. BRANICK ROTATABLY AND PIVOTALLY ADJUSTABLE WHEEL HOIST ANDSUPPORT 2 Sheets-Sheet 2 Filed May 27, 1946 Patented Mar. 27, 1951UNITED STATES TENT OFFICE RorA'rABLY AND PIVOTALLY ADJUSTABLE WHEELnors'r AND SUPPORT My invention relates to a device for facilitating theapplication and removal of pneumatic tires from their rims and is in thenature of an im-' provement upon the structure disclosed and broadlyclaimed in my co-pending application for U. S. Letters Patent, SerialNo. 595,782, now Patent No. 2,448,414.

The objects and advantages of my invention will become apparent from thefollowing detailed specification, appended claim and attached drawings.

Referring to the drawings, wherein like characters indicate like partsthroughout the several views:

I Fig. 1 is a side perspective, some parts being broken away;

Fig. 2 is a View corresponding generally to Fig. 1, showing some of theparts in different positions with a tire-equipped rim mounted thereon,some parts being broken away; 7

Fig. 3 is a side elevational view, one position thereof being shown bydotted lines;

Fig. i is a transverse cross sectional view taken on the line ii of Fig.3;

Fig. 5 is a view corresponding to Fig. 4, but showing a differentposition of the parts;

Fig. 6 is a fragmentary detail taken on the line 6 5 of Fig. 5, andispartly in section and partly in side elevation;

Fig. 7 is a fragmentary detail in cross-section taken on the .ine l'! ofFig. 1; and

Fig. 8 is a view in cross-section taken on the line 8-8 of Fig. l, withsome parts broken away.

Referring with greater particularity to the drawings, the numeral Iindicates a base, preferably and as shown, being U-shaped in form andconstructed of channel or other structural iron. Rigidly secured to theclosed end of base i, intermediate the sides thereof, is a box-likeupright supporting member 2. An elongated split sleeve 3 is providedwith a pair of laterally-spaced depending hinge lugs i, which arepivoted to the opposite sides of supporting member 2 adjacent the topthereof by means of a hinge pin in the form of a bolt 5 (see Fig. 5). Anelongated forwardlyprojecting arm 6, preferably and as shown, beingtubular in form, is journalled for rotation, adjacent its rear end, inthe split sleeve 3. Secured to the extreme rear end of arm 5 is a handWheel or other suitable turning means i. Tubular arm 6 is lateralloffset at 8 so as to position the v tire rim engaging mechanism, mountedon its outer end, and identified in its entirety by the numeral 9, inapproximate alignment with the axis of rotation of the tubular arm 6 inthe sleeve 3.

1 Claim. (Cl. 144-288) The tire rim engaging mechanism 5! issubstantially identical to that tire rim engaging mechanism disclosed inmy above-identified co-pending application, and is in the nature of anex panding mandrel rigidly retained within a split collar IE), which inturn is weldedor otherwise secured to the inturned end H of tubular arm6. Collar it! provided with a pair of out-turned parallel flanges [2which are equipped with tightening bolts Ill. Secured t0 and divergingfrom collar iii, in substantially the same plane, is a pair of fixeddogs l4 having rim engaging tips 5 at their extreme outer ends. Rigidlyretained within collar it is a cylinder [6 (see particularly Fig. 7)having a closed end i! and having a bearing cap 18 which is removablysecured thereto by screws i9. Mounted for reciprocation within thecylinder is a suitable piston 29 which is equipped by means ofanaxially-extending bolt 29, with an elongated movable dog 22, which worksthrough an opening 23 in bearing cap it. Piston 20 is biased toward theclosed end i! by means of a coil compression spring 24 surrounding thedog 22 within the cylinder |6. Removable dog 22 1s provided with a rimengaging tip 25.

Elongated split sleeveS is provided at one side thereof with a pair ofradially projectin'g normally spaced parallel flanges Zithrough alignedapertures 21 in which a headed bolt 28 is loosely mounted. The outer endof bolt '28 is bifurcated at 29 to receive the inner end of a cam rod InFig. 4 the cam rod is in a position to allow rotation of the tubular arm(3 in the sleeve 3; while in Fig. 5 the cam rod 3% is shown in aposition to lock the arm 6 against rotation.

Projecting forwardly from the intermediate portion of the closed end ofbase I is a pair of laterally-spaced supporting brackets 3! havingupturned ends 32 (see particularly Fig. 8). Pivotally mounted betweenthe upstanding ends 32 of brackets 35, by means of bolts 33, is acylinder 34, which has a closedbottom 35 and a bearing cap 36 removablysecured thereto by means of bolts 31. Mounted for reciprocation withinthe cylinder 36 is a piston 38 which, by means of an axially-extendingbolt 39, carries a push rod ii),

' which extends through an openin it in bearing nected to a T 46 whichin turn is connected to a three-way valve 41 of a type disclosed andclaimed in my Patent No. 2,310,892. A conduit 48 extends downwardly,preferably and as shown, by way of the interior of box-like supportingmember 2, and communicates at 49 with the bottom end of cylinder 34.

Leading from the T 46 is another air tube or conduit 50 which isconnected to a still further three-way valve 5| similar in all respectsto valve 41, and then extends to, and communicates with the closed end Hof cylinder l6. Preferably, and as shown, conduit 50 enters tubular arm6 at 52 and is concealed within the same until just prior to itsconnection with the closed end I! of the cylinder [6.

Operation It should be obvious that when the three-way valve 5| ismanually placed in a position to allow air or other fiuid under pressureto enter the cylinder [6, that the piston will be forced outward againstthe action of spring 24 to a point where it will contact the rim of awheel assembly, as indicated by A, with sufficient force to impose equalpressure by all three dogs, [4 and 22, against said rim. This force issufiicient not only to center the rim with respect to the tire rimengaging mechanism 9, but also to permit lifting of any given rim, andturning of the same to any desired position.

To elevate the rim to the desired height, it

is only necessary to position valve 41 so thatair under pressure willenter the bottom of cylinder 34, thus forcing piston 38, push rod 46,sleeve 3, and tubular arm 6 upwardly. To tilt the rim engaging mechanism9 from a vertical position shown in Fig. 1 to a horizontal positionshown in Fig. 2, the cam rod is placed in a position indicated in Fig.4, and the hand wheel I is turneda desired extent.

To lower rim-engaging mechanism 9, valve 4'! is set in a position topermit exhaust to atmosphere of air therethrough from the cylinder 34,whereupon the tubular arm 6, sleeve 3, push rod and piston 38 arelowered under the action of gravity. However, should it be desirable,under any circumstance, to insure positioning of the arm 6 and rimequipped tire assembly A in 4 an elevated position, I provide aconventional globe valve 53, which may be opened and shut at will.

To release the tire rim engaging mechanism 9 from rim equipped tireassembly A, the valve 5| is placed in a position to permit escapethrough line of air under pressure from cylinder l6 whereupon theremovable dog 22 will be retracted under the action of spring 24.

While I have disclosed a preferred embodiment of my invention asprovided by Sec. 4888 of the U. S. Statutes, it should be understoodthat the same is subject to modification without departing from thescope of the appended claim.

What I claim is:

A rotatably and pivotally adjustable Wheel hoist and support including abase, an upright supporting member rigidly secured at its lower end tosaid base, a split sleeve pivotally connected to the upper end of saidupright, a forwardly-projecting arm journalled adjacent its rear end insaid split sleeve, means for contract-.- ing said sleeve about said armwhereby to lock said arm in a desired set position, a hand wheel securedto the extreme rear end of said arm, a lateral offset in said armintermediate said sleeve and the forward end thereof, tire rim engagingmeans on the forward end of said arm in substantial alignment with theaxis of rotation of said arm, and means for raising and lowering theforward end of said arm.

CHARLES E. BRANICK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,321,983 Cole Nov. 18, 19191,788,097 Frisbie Jan. 6, 1931 2,201,982 Bazarek May 28, 1940 2,213,535Seip M Sept. 3, 1940 2,448,414 'Branick Aug. 31, 1948 FOREIGN PATENTSNumber Country Date 396,071 France Jan. 15, 1909

